The Wilkins 34UFX1MM-700XL is a dual check valve backflow preventer designed for potable water protection against backsiphonage and backpressure.

Key Specifications:

• Connection Type: 3/4" FNPT union inlet x 1" MMTC outlet
• Maximum Working Water Pressure: 175 PSI
• Maximum Working Water Temperature: 180°F
• Notable Certifications: ASSE 1024, CSA, NSF/ANSI/CAN 61
• Body Material: Low Lead Bronze

Other Related Variants:

• 114UFMX1UF-700XL: 1-1/4" FMTC inlet x 1" FNPT union outlet
• 12UFX12F-700XL: 1/2" FNPT union inlet x 1/2" FNPT outlet
• 14UFX14F-700XL: 1/4" FNPT union inlet x 1/4" FNPT outlet
• 1MX1UF-700XL: 1" MNPT union inlet x 1" FNPT outlet
• 1UFMX1F-700XL: 1" FMTC union inlet x 1" FNPT outlet
• 1UFMX1M-700XL: 1" FMTC union inlet x 1" MNPT outlet
• 1UFMX1MM-700XL: 1" FMTC union inlet x 1" MMTC outlet
• 1UFMX1UF-700XL: 1" FMTC union inlet x 1" FNPT union outlet
• 1UFMX34F-700XL: 1" FMTC union inlet x 3/4" FNPT outlet
• 1UFMX34M-700XL: 1" FMTC union inlet x 3/4" MNPT outlet
• 1UFMX34UF-700XL: 1" FMTC union inlet x 3/4" FNPT union outlet
• 1UFX1F-700XL: 1" FNPT union inlet x 1" FNPT outlet
• 34MX34UF-700XL: 3/4" MNPT union inlet x 3/4" FNPT outlet
• 34UFMX34F-700XL: 3/4" FMTC union inlet x 3/4" FNPT outlet
• 34UFMX34M-700XL: 3/4" FMTC union inlet x 3/4" MNPT outlet
• 34UFMX34MM-700XL: 3/4" FMTC union inlet x 3/4" MMTC outlet
• 34UFX34F-700XL: 3/4" FNPT union inlet x 3/4" FNPT outlet
• 38UFX38F-700XL: 3/8" FNPT union inlet x 3/8" FNPT outlet

Materials:

• Low Lead Cast Bronze ASTM B 584
• Buna Nitrile Elastomers (FDA approved)
• Noryl Polymers (1/4"-1/2" sizes)
• Delrin Polymers (3/4"-1" sizes)
• Stainless Steel Springs, 300 Series

Typical Installation:

Local codes shall govern installation requirements. Unless otherwise specified, the installation shall be in accordance with the manufacturer's instructions and the latest edition of the Uniform Plumbing Code. The installation shall be made so that no part of the unit can be submerged.

Standards Compliance:

ASSE Listed 1024; CSA Certified; NSF/ANSI/CAN 61

Features & Benefits:

• Lead-Free Compliance: Zurn 34UFX1MM-700XL meets 0.25% maximum weighted average lead content for safe potable water use.
• Dual Backflow Protection: Protects against both backsiphonage and backpressure of polluted water into potable water supply.
• Durable Construction: Low lead bronze body with stainless steel springs ensures long-lasting, corrosion-resistant performance.
• Versatile Connections: Available in multiple thread types including NPT, meter thread, and copper sweat configurations for flexible installation.

FAQ

Q: Can the Wilkins 34UFX1MM-700XL be installed in any flow direction?

A: Yes, all Model 700XL configurations are reversible and can be installed in either flow direction.

Q: What is the difference between the Zurn 34UFX1MM-700XL and other 700XL models?

A: The model number indicates the connection type: this unit features a 3/4" FNPT union inlet and 1" MMTC (male meter thread connection) outlet. Other models have different inlet/outlet combinations.

Q: Can this valve be submerged during installation?

A: No, the installation must be made so that no part of the unit can be submerged, per code requirements.

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